Sealed receptacle



E. F. HULBERT. SEALED RECEPTACLE. APPLICATION FILED OCT. 4, 1919.

' Patented J uly 26, 1921.

UNITED STATES PATENT OFFICE.

nnwm r. nunnna'r, or MILWAUKEE, WISCONSIN, ASSIGNOR TO JIFFY DESSERTcomrm, or wauxnsna, WISCONSIN, A conromrron' or wrsoonsm.

' swan nnonrzracrn Specification of Letters Patent.

Patented July 26-, 1921.

Application filed October 4, 1919. Serial No. 328,604.

To it may concern:

Be it known that I, EDWIN F. HULBER'r, a citizen of the United States,residing at Milwaukee, in' the county of Milwaukee and State ofWisconsin, have invented certain new. and useful Improvements in SealedReceptacles, of which the following is a specification, reference beinghad therein to the accompanying drawings, forming a part thereof.

My'invention relates to an improvement. 'in paper receptacles and moreespecially those which are adapted to contain fine powdery materials,and the primary object of the invention is to provide a receptaclecomposed of moisture proof paper and folded in such a manner as to bringall of the free edges either to the mouth thereof in lapped relation orclose thereto and folded in the ends thereof and sealed thereby, and todo the same with the use of a minimum amount of paper.

It is a further object of the invention to have a receptacle that may beeasily made by automatic machinery, may be made out of a square sheet ofpaper and one that provides a better closure because the cumbersome topfolds reviously in use are avoided. I am also enab ed by my invention toform a better closure and more com letely look all of the openings. I amfurt er enabled to produce a bag which is smooth on both sides thereof,all the folds being on the ends thereof, thus giving me not only anarticle of improved appearance but also a fiat space available fordecoration or the printing of either advertisements, directions, or suchother matter as it may be desired to place thereon. in making the bewith short folds of comparatively few s eets of material, so that thereceptacle may be produced by machinery with a greatly increasedrapidity o ver methods nowin use and without the tearing of the materialwhen the same is ironed hard to complete the closures. Furthermore, theuse of any paste, metallic fastening means, ton es, or punched fastenersin any part of this bag is avoided. I

In the accompanying drawin Figure 1 showsa plan view of the sheet fromwhich the receptacle is folded; Fig. 2 is a perspee tive view of thereceptacle in which the pnmary folding has taken place; Fig. 3 1s a Afurther improvement consists.

perspective view of the same in which the secondary folding has takenplace; Fig. 4 shows in pers ective the receptacle completed except t eclosure; Fig. 5 shows in perspective the first fold of the closure; Fig.6 the completed closure; and Fig. 7 an opt onal additional closin meansby corrugation of the ends thereo In making the bag the blank of Fig. 11s preferablya square of parafiin paper or so-called wax paper and it isfolded to form the bottom 1, smooth sides 2, end pieces 3, and wings 4.The end pieces 3 meet the sides 2, the wings 4: being folded outwardlytherefrom in the edge 5. These wings 4 are then folded so as to lap overeach other and the ends 3 as shown in Fig. 3, and then after the bag hasbeen filled with the mater al it is to carry the upper extension of thesides 2 or flaps 6 are brought together as shown m Fig. 4, the ends 3and wings 4 are then indented sharply as shown in Fig. 4 and the edges 5and the topmost portion of the wings 4 are sharply ironed to form asharp closure which will prevent the drawing up of the powderedcontents.

be top sea is effected by bending the flaps 6 back upon the sides 2 inexcess of 90 degrees as shown in Fig. 5 and then again Having completelydescribed my invention, I claim:

A smooth sided sealed receptacle formed from a single square sheet ofmaterial, the bottom being laid out upon the diagonal thereof, all ofthe corners of the sheet being brought .to points above the mouth of thereceptacle, the receptacle being formed, closed, and sealed by thenfolding the free edges into sharply acute angles and making sealingcorners by the intimate contact thereof.

EDWIN F. HULBERT.

Witnesses:

F. C. PFLUGRADS, WM. Forums.

